Importance of Coherence and Redundancy principles

Why are the coherence and redundancy principles important in an e-learning environment? Provide examples.

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The Coherence Principle states that, "students learn better when extraneous material is excluded rather than included." (Liu, P). An e-learning environment depends only on the presentation. It is very important that developers of these content materials learn how to design a course or project to promote increased learning. As a summary, the Coherence Principle emphasizes that only important information should be included. As such, unnecessary data, sounds, words, and images should be eliminated. The capacity of human memory is limited and extraneous sounds are not helpful in any multimedia presentation. Graphics that ...